By using the white light confocal chromatic CL4 MG35 probe on a CCS Prima controller the customer was able to hold +/- 0.6 microns of thickness accuracy with the controller set to take 1,000 samples per second and a data point every 0.005″ along the film’s length. The white light confocal unit is able to measure the front face and back face of the film from one side and provide 2 data points.

Engineers use a precision scanning confocal displacement sensor to inspect the surface of a steel brake line tip for scratches and defects. They use a new white-light distance sensor from Acuity. The measurement pen aims down to the sample that is moved on a linear XY stage. The scanning station includes a turret of several confocal measurement pens, but users can order single-channel systems.